Yawata, Ichihara, Chiba, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Yawata, Ichihara, Chiba, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
71AQILowest AQI recorded on
21st Aug 2023
11AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Yawata, Ichihara, Chiba, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
6 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
1PM4th Aug
90AQI
Avg. Lowest Time
4AM4th Aug
41AQI
Night time
Avg. Highest Time
7PM4th Aug
78AQI
Avg. Lowest Time
3AM5th Aug
40AQI
In the last 24 hours,
Yawata's AQI reached its highest point of 90 at 1 PM during the Day, while the lowest point, 40, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yawata, Ichihara, Chiba, Japan
JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025394 AMAQI
6th Jul 2025455 AMAQI
6th Jul 2025446 AMAQI
6th Jul 2025467 AMAQI
6th Jul 2025468 AMAQI
6th Jul 2025759 AMAQI
6th Jul 20259610 AMAQI
6th Jul 202510811 AMAQI
6th Jul 202510012 PMAQI
6th Jul 2025871 PMAQI
6th Jul 2025892 PMAQI
6th Jul 2025863 PMAQI
6th Jul 2025954 PMAQI
6th Jul 2025965 PMAQI
6th Jul 2025986 PMAQI
6th Jul 20251067 PMAQI
6th Jul 2025978 PMAQI
6th Jul 2025749 PMAQI
6th Jul 20257210 PMAQI
6th Jul 20257211 PMAQI
7th Jul 20257012 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025472 AMAQI
7th Jul 2025463 AMAQI
28°C25/32°C
7th Jul 2025504 AMAQI
7th Jul 2025575 AMAQI
7th Jul 2025576 AMAQI
7th Jul 2025567 AMAQI
7th Jul 2025578 AMAQI
7th Jul 2025979 AMAQI
7th Jul 202511810 AMAQI
7th Jul 202512411 AMAQI
7th Jul 202511912 PMAQI
7th Jul 2025981 PMAQI
7th Jul 2025922 PMAQI
7th Jul 2025893 PMAQI
7th Jul 2025834 PMAQI
7th Jul 2025885 PMAQI
7th Jul 2025986 PMAQI
7th Jul 20251057 PMAQI
7th Jul 2025988 PMAQI
7th Jul 2025769 PMAQI
7th Jul 20257610 PMAQI
7th Jul 20257611 PMAQI
8th Jul 20257112 AMAQI
8th Jul 2025581 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025563 AMAQI
28°C25/32°C
8th Jul 2025584 AMAQI
8th Jul 2025645 AMAQI
8th Jul 2025656 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025648 AMAQI
8th Jul 2025909 AMAQI
8th Jul 20259910 AMAQI
8th Jul 20259611 AMAQI
8th Jul 20259412 PMAQI
8th Jul 2025881 PMAQI
8th Jul 2025862 PMAQI
8th Jul 2025853 PMAQI
8th Jul 2025824 PMAQI
8th Jul 2025795 PMAQI
8th Jul 2025846 PMAQI
8th Jul 2025877 PMAQI
8th Jul 2025848 PMAQI
8th Jul 2025799 PMAQI
8th Jul 20257910 PMAQI
8th Jul 20258011 PMAQI
9th Jul 20257812 AMAQI
9th Jul 2025641 AMAQI
9th Jul 2025622 AMAQI
9th Jul 2025613 AMAQI
28°C25/31°C
9th Jul 2025634 AMAQI
9th Jul 2025685 AMAQI
9th Jul 2025676 AMAQI
9th Jul 2025677 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025799 AMAQI
9th Jul 20258810 AMAQI
9th Jul 20259511 AMAQI
9th Jul 20259612 PMAQI
9th Jul 2025981 PMAQI
9th Jul 20251092 PMAQI
9th Jul 20251123 PMAQI
9th Jul 2025844 PMAQI
9th Jul 2025645 PMAQI
9th Jul 2025556 PMAQI
9th Jul 2025487 PMAQI
9th Jul 2025488 PMAQI
9th Jul 2025589 PMAQI
9th Jul 20255710 PMAQI
9th Jul 20255611 PMAQI
10th Jul 20255612 AMAQI
10th Jul 2025651 AMAQI
10th Jul 2025672 AMAQI
10th Jul 2025683 AMAQI
28°C25/31°C
10th Jul 2025684 AMAQI
10th Jul 2025735 AMAQI
10th Jul 2025746 AMAQI
10th Jul 2025737 AMAQI
10th Jul 2025748 AMAQI
10th Jul 2025359 AMAQI
10th Jul 20252810 AMAQI
10th Jul 20253911 AMAQI
10th Jul 20253612 PMAQI
10th Jul 2025371 PMAQI
10th Jul 2025382 PMAQI
10th Jul 2025363 PMAQI
10th Jul 2025324 PMAQI
10th Jul 2025255 PMAQI
10th Jul 2025226 PMAQI
10th Jul 2025347 PMAQI
10th Jul 2025598 PMAQI
10th Jul 2025599 PMAQI
10th Jul 20255710 PMAQI
10th Jul 20255711 PMAQI
11th Jul 20255712 AMAQI
11th Jul 2025661 AMAQI
11th Jul 2025682 AMAQI
11th Jul 2025683 AMAQI
27°C23/30°C
11th Jul 2025664 AMAQI
11th Jul 2025625 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025638 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251611 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025271 PMAQI
11th Jul 2025312 PMAQI
11th Jul 2025283 PMAQI
11th Jul 2025284 PMAQI
11th Jul 2025275 PMAQI
11th Jul 2025326 PMAQI
11th Jul 2025347 PMAQI
11th Jul 2025398 PMAQI
11th Jul 2025559 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025631 AMAQI
12th Jul 2025642 AMAQI
12th Jul 2025643 AMAQI
23°C22/25°C
12th Jul 2025624 AMAQI
12th Jul 2025585 AMAQI
12th Jul 2025586 AMAQI
12th Jul 2025587 AMAQI
12th Jul 2025588 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20254210 AMAQI
12th Jul 20254511 AMAQI
12th Jul 20254612 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025502 PMAQI
12th Jul 2025523 PMAQI
12th Jul 2025524 PMAQI
12th Jul 2025525 PMAQI
12th Jul 2025426 PMAQI
12th Jul 2025397 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255310 PMAQI
12th Jul 20255211 PMAQI
13th Jul 20255212 AMAQI
13th Jul 2025581 AMAQI
13th Jul 2025602 AMAQI
13th Jul 2025603 AMAQI
24°C21/27°C
13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253911 AMAQI
13th Jul 20253712 PMAQI
13th Jul 2025341 PMAQI
13th Jul 2025342 PMAQI
13th Jul 2025333 PMAQI
13th Jul 2025304 PMAQI
13th Jul 2025265 PMAQI
13th Jul 2025266 PMAQI
13th Jul 2025257 PMAQI
13th Jul 2025278 PMAQI
13th Jul 2025449 PMAQI
13th Jul 20254210 PMAQI
13th Jul 20254211 PMAQI
14th Jul 20254412 AMAQI
14th Jul 2025501 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
26°C23/28°C
14th Jul 2025574 AMAQI
14th Jul 2025555 AMAQI
14th Jul 2025556 AMAQI
14th Jul 2025557 AMAQI
14th Jul 2025558 AMAQI
14th Jul 2025289 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251612 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025262 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025204 PMAQI
14th Jul 2025205 PMAQI
14th Jul 2025206 PMAQI
14th Jul 2025227 PMAQI
14th Jul 2025268 PMAQI
14th Jul 2025389 PMAQI
14th Jul 20253910 PMAQI
14th Jul 20254011 PMAQI
15th Jul 20254012 AMAQI
15th Jul 2025481 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI
25°C24/28°C
15th Jul 2025544 AMAQI
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251510 AMAQI
15th Jul 20251611 AMAQI
15th Jul 20251612 PMAQI
15th Jul 2025201 PMAQI
15th Jul 2025202 PMAQI
15th Jul 2025213 PMAQI
15th Jul 2025194 PMAQI
15th Jul 2025245 PMAQI
15th Jul 2025316 PMAQI
15th Jul 2025257 PMAQI
15th Jul 2025218 PMAQI
15th Jul 2025359 PMAQI
15th Jul 20253610 PMAQI
15th Jul 20253811 PMAQI
16th Jul 20254712 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
26°C25/28°C
16th Jul 2025514 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025486 AMAQI
16th Jul 2025487 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20252310 AMAQI
16th Jul 20252011 AMAQI
16th Jul 20252012 PMAQI
16th Jul 2025221 PMAQI
16th Jul 2025202 PMAQI
16th Jul 2025203 PMAQI
16th Jul 2025194 PMAQI
16th Jul 2025225 PMAQI
16th Jul 2025246 PMAQI
16th Jul 2025207 PMAQI
16th Jul 2025228 PMAQI
16th Jul 2025349 PMAQI
16th Jul 20253410 PMAQI
16th Jul 20253811 PMAQI
17th Jul 20253812 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025512 AMAQI
17th Jul 2025513 AMAQI
26°C25/27°C
17th Jul 2025504 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025477 AMAQI
17th Jul 2025478 AMAQI
17th Jul 2025299 AMAQI
17th Jul 20252510 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20252612 PMAQI
17th Jul 2025241 PMAQI
17th Jul 2025292 PMAQI
17th Jul 2025313 PMAQI
17th Jul 2025304 PMAQI
17th Jul 2025305 PMAQI
17th Jul 2025236 PMAQI
17th Jul 2025267 PMAQI
17th Jul 2025288 PMAQI
17th Jul 2025419 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20254112 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025492 AMAQI
18th Jul 2025483 AMAQI
27°C25/29°C
18th Jul 2025484 AMAQI
18th Jul 2025445 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025447 AMAQI
18th Jul 2025448 AMAQI
18th Jul 2025289 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252211 AMAQI
18th Jul 20252112 PMAQI
18th Jul 2025221 PMAQI
18th Jul 2025262 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025234 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025167 PMAQI
18th Jul 2025248 PMAQI
18th Jul 2025349 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253711 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025431 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025473 AMAQI
27°C25/29°C
19th Jul 2025464 AMAQI
19th Jul 2025425 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025428 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252210 AMAQI
19th Jul 20253011 AMAQI
19th Jul 20252812 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025212 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025214 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025176 PMAQI
19th Jul 2025157 PMAQI
19th Jul 2025228 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253110 PMAQI
19th Jul 20253011 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI
27°C24/29°C
20th Jul 2025424 AMAQI
20th Jul 2025415 AMAQI
20th Jul 2025396 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025299 AMAQI
20th Jul 20251710 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20251812 PMAQI
20th Jul 2025181 PMAQI
20th Jul 2025192 PMAQI
20th Jul 2025213 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025268 PMAQI
20th Jul 2025309 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253111 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025401 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025413 AMAQI
27°C25/30°C
21st Jul 2025394 AMAQI
21st Jul 2025375 AMAQI
21st Jul 2025376 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025378 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20252512 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025282 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025295 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025257 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025299 PMAQI
21st Jul 20252910 PMAQI
21st Jul 20252811 PMAQI
22nd Jul 20252812 AMAQI
22nd Jul 2025371 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025383 AMAQI
28°C26/31°C
22nd Jul 2025384 AMAQI
22nd Jul 2025365 AMAQI
22nd Jul 2025376 AMAQI
22nd Jul 2025377 AMAQI
22nd Jul 2025378 AMAQI
22nd Jul 2025249 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20252611 AMAQI
22nd Jul 20253012 PMAQI
22nd Jul 2025351 PMAQI
22nd Jul 2025362 PMAQI
22nd Jul 2025303 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025325 PMAQI
22nd Jul 2025246 PMAQI
22nd Jul 2025167 PMAQI
22nd Jul 2025198 PMAQI
22nd Jul 2025269 PMAQI
22nd Jul 20252810 PMAQI
22nd Jul 20253011 PMAQI
23rd Jul 20252812 AMAQI
23rd Jul 2025311 AMAQI
23rd Jul 2025372 AMAQI
23rd Jul 2025363 AMAQI
28°C26/31°C
23rd Jul 2025374 AMAQI
23rd Jul 2025365 AMAQI
23rd Jul 2025366 AMAQI
23rd Jul 2025367 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025249 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20253111 AMAQI
23rd Jul 20253312 PMAQI
23rd Jul 2025331 PMAQI
23rd Jul 2025332 PMAQI
23rd Jul 2025313 PMAQI
23rd Jul 2025294 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025276 PMAQI
23rd Jul 2025197 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025269 PMAQI
23rd Jul 20252610 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025341 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025343 AMAQI
28°C26/31°C
24th Jul 2025344 AMAQI
24th Jul 2025345 AMAQI
24th Jul 2025356 AMAQI
24th Jul 2025347 AMAQI
24th Jul 2025358 AMAQI
24th Jul 2025349 AMAQI
24th Jul 20254210 AMAQI
24th Jul 20254811 AMAQI
24th Jul 20255812 PMAQI
24th Jul 2025581 PMAQI
24th Jul 2025582 PMAQI
24th Jul 2025483 PMAQI
24th Jul 2025364 PMAQI
24th Jul 2025275 PMAQI
24th Jul 2025216 PMAQI
24th Jul 2025177 PMAQI
24th Jul 2025208 PMAQI
24th Jul 2025249 PMAQI
24th Jul 20252410 PMAQI
24th Jul 20252611 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025291 AMAQI
25th Jul 2025342 AMAQI
25th Jul 2025343 AMAQI
28°C25/32°C
25th Jul 2025364 AMAQI
25th Jul 2025385 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025387 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252510 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20253112 PMAQI
25th Jul 2025301 PMAQI
25th Jul 2025272 PMAQI
25th Jul 2025203 PMAQI
25th Jul 2025204 PMAQI
25th Jul 2025175 PMAQI
25th Jul 2025156 PMAQI
25th Jul 2025167 PMAQI
25th Jul 2025198 PMAQI
25th Jul 2025249 PMAQI
25th Jul 20252410 PMAQI
25th Jul 20252611 PMAQI
26th Jul 20252712 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025343 AMAQI
28°C26/31°C
26th Jul 2025354 AMAQI
26th Jul 2025345 AMAQI
26th Jul 2025346 AMAQI
26th Jul 2025347 AMAQI
26th Jul 2025348 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20252410 AMAQI
26th Jul 20252411 AMAQI
26th Jul 20252012 PMAQI
26th Jul 2025231 PMAQI
26th Jul 2025202 PMAQI
26th Jul 2025203 PMAQI
26th Jul 2025204 PMAQI
26th Jul 2025205 PMAQI
26th Jul 2025206 PMAQI
26th Jul 2025167 PMAQI
26th Jul 2025178 PMAQI
26th Jul 2025269 PMAQI
26th Jul 20253010 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252612 AMAQI
27th Jul 2025321 AMAQI
27th Jul 2025332 AMAQI
27th Jul 2025333 AMAQI
29°C26/32°C
27th Jul 2025324 AMAQI
27th Jul 2025315 AMAQI
27th Jul 2025326 AMAQI
27th Jul 2025327 AMAQI
27th Jul 2025328 AMAQI
27th Jul 2025239 AMAQI
27th Jul 20251710 AMAQI
27th Jul 20252111 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025181 PMAQI
27th Jul 2025222 PMAQI
27th Jul 2025243 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025186 PMAQI
27th Jul 2025137 PMAQI
27th Jul 2025208 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252412 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025322 AMAQI
28th Jul 2025323 AMAQI
28°C26/31°C
28th Jul 2025324 AMAQI
28th Jul 2025315 AMAQI
28th Jul 2025306 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20252910 AMAQI
28th Jul 20253311 AMAQI
28th Jul 20254812 PMAQI
28th Jul 2025601 PMAQI
28th Jul 2025562 PMAQI
28th Jul 2025533 PMAQI
28th Jul 2025494 PMAQI
28th Jul 2025365 PMAQI
28th Jul 2025246 PMAQI
28th Jul 2025217 PMAQI
28th Jul 2025248 PMAQI
28th Jul 2025269 PMAQI
28th Jul 20252610 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252512 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025312 AMAQI
29th Jul 2025313 AMAQI
28°C26/31°C
29th Jul 2025324 AMAQI
29th Jul 2025345 AMAQI
29th Jul 2025336 AMAQI
29th Jul 2025327 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025329 AMAQI
29th Jul 20252510 AMAQI
29th Jul 20252711 AMAQI
29th Jul 20252812 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025312 PMAQI
29th Jul 2025283 PMAQI
29th Jul 2025184 PMAQI
29th Jul 2025195 PMAQI
29th Jul 2025186 PMAQI
29th Jul 2025187 PMAQI
29th Jul 2025198 PMAQI
29th Jul 2025249 PMAQI
29th Jul 20252310 PMAQI
29th Jul 20252411 PMAQI
30th Jul 20252612 AMAQI
30th Jul 2025301 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025313 AMAQI
28°C25/33°C
30th Jul 2025324 AMAQI
30th Jul 2025325 AMAQI
30th Jul 2025316 AMAQI
30th Jul 2025317 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20252210 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252112 PMAQI
30th Jul 2025241 PMAQI
30th Jul 2025232 PMAQI
30th Jul 2025263 PMAQI
30th Jul 2025264 PMAQI
30th Jul 2025325 PMAQI
30th Jul 2025306 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025338 PMAQI
30th Jul 2025349 PMAQI
30th Jul 20253410 PMAQI
30th Jul 20253611 PMAQI
31st Jul 20253312 AMAQI
31st Jul 2025321 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025323 AMAQI
28°C25/33°C
31st Jul 2025324 AMAQI
31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20253311 AMAQI
31st Jul 20253112 PMAQI
31st Jul 2025291 PMAQI
31st Jul 2025262 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025204 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025246 PMAQI
31st Jul 2025287 PMAQI
31st Jul 2025298 PMAQI
31st Jul 2025339 PMAQI
31st Jul 20253010 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20252712 AMAQI
1st Aug 2025301 AMAQI
1st Aug 2025362 AMAQI
1st Aug 2025373 AMAQI
27°C24/31°C
1st Aug 2025364 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025386 AMAQI
1st Aug 2025377 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025329 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20253811 AMAQI
1st Aug 20253812 PMAQI
1st Aug 2025311 PMAQI
1st Aug 2025372 PMAQI
1st Aug 2025363 PMAQI
1st Aug 2025454 PMAQI
1st Aug 2025385 PMAQI
1st Aug 2025536 PMAQI
1st Aug 2025277 PMAQI
1st Aug 2025368 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20252912 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI
27°C25/30°C
2nd Aug 2025384 AMAQI
2nd Aug 2025405 AMAQI
2nd Aug 2025396 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253410 AMAQI
2nd Aug 20254311 AMAQI
2nd Aug 20254212 PMAQI
2nd Aug 2025481 PMAQI
2nd Aug 2025582 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025566 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025359 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
28°C25/33°C
3rd Aug 2025404 AMAQI
3rd Aug 2025405 AMAQI
3rd Aug 2025396 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025449 AMAQI
3rd Aug 20254910 AMAQI
3rd Aug 20255011 AMAQI
3rd Aug 20256212 PMAQI
3rd Aug 2025511 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025493 PMAQI
3rd Aug 2025504 PMAQI
3rd Aug 2025495 PMAQI
3rd Aug 2025486 PMAQI
3rd Aug 2025447 PMAQI
3rd Aug 2025448 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254310 PMAQI
3rd Aug 20254011 PMAQI
4th Aug 20253912 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025393 AMAQI
29°C26/33°C
4th Aug 2025414 AMAQI
4th Aug 2025435 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20257410 AMAQI
4th Aug 20258311 AMAQI
4th Aug 20258212 PMAQI
4th Aug 2025901 PMAQI
4th Aug 2025882 PMAQI
4th Aug 2025833 PMAQI
4th Aug 2025874 PMAQI
4th Aug 2025885 PMAQI
4th Aug 2025886 PMAQI
4th Aug 2025787 PMAQI
4th Aug 2025738 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20254611 PMAQI
5th Aug 20254712 AMAQI
5th Aug 2025431 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025403 AMAQI
29°C27/32°C
5th Aug 2025504 AMAQI
4 AM5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025539 AMAQI
5th Aug 20255810 AMAQI
5th Aug 20255711 AMAQI
11 AM5th Aug 20256012 PMAQI
5th Aug 2025551 PMAQI
5th Aug 2025492 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025504 PMAQI
5th Aug 2025495 PMAQI
5th Aug 2025466 PMAQI
6 PM5th Aug 2025467 PMAQI
5th Aug 2025448 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
45AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
4 PM - 6 PM
38AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 45), while the lowest AQI was between 4 PM to 6 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 3 AM
43AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM
35AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 43), while the lowest AQI was between 7 PM to 7 PM (Avg. 35).
2025 Days Vs Air Quality
Yawata, Ichihara, Chiba, Japan
2025
91%
196
9%
20
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
196 DaysModerate
20 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Yawata, Ichihara, Chiba, Japan
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
32AQI
32AQI
2nd January 2025
35AQI
35AQI
3rd January 2025
25AQI
25AQI
4th January 2025
29AQI
29AQI
5th January 2025
32AQI
32AQI
6th January 2025
53AQI
53AQI
7th January 2025
30AQI
30AQI
8th January 2025
37AQI
37AQI
9th January 2025
29AQI
29AQI
10th January 2025
30AQI
30AQI
11th January 2025
27AQI
27AQI
12th January 2025
34AQI
34AQI
13th January 2025
28AQI
28AQI
14th January 2025
44AQI
44AQI
15th January 2025
37AQI
37AQI
16th January 2025
35AQI
35AQI
17th January 2025
30AQI
30AQI
18th January 2025
32AQI
32AQI
19th January 2025
58AQI
58AQI
20th January 2025
43AQI
43AQI
21st January 2025
44AQI
44AQI
22nd January 2025
39AQI
39AQI
23rd January 2025
56AQI
56AQI
24th January 2025
45AQI
45AQI
25th January 2025
42AQI
42AQI
26th January 2025
37AQI
37AQI
27th January 2025
37AQI
37AQI
28th January 2025
39AQI
39AQI
29th January 2025
31AQI
31AQI
30th January 2025
34AQI
34AQI
31st January 2025
28AQI
28AQI
1st February 2025
39AQI
39AQI
2nd February 2025
31AQI
31AQI
3rd February 2025
45AQI
45AQI
4th February 2025
31AQI
31AQI
5th February 2025
35AQI
35AQI
6th February 2025
30AQI
30AQI
7th February 2025
30AQI
30AQI
8th February 2025
30AQI
30AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
31AQI
31AQI
12th February 2025
34AQI
34AQI
13th February 2025
32AQI
32AQI
14th February 2025
31AQI
31AQI
15th February 2025
30AQI
30AQI
16th February 2025
39AQI
39AQI
17th February 2025
36AQI
36AQI
18th February 2025
32AQI
32AQI
19th February 2025
30AQI
30AQI
20th February 2025
30AQI
30AQI
21st February 2025
30AQI
30AQI
22nd February 2025
31AQI
31AQI
23rd February 2025
32AQI
32AQI
24th February 2025
32AQI
32AQI
25th February 2025
35AQI
35AQI
26th February 2025
35AQI
35AQI
27th February 2025
39AQI
39AQI
28th February 2025
61AQI
61AQI
1st March 2025
50AQI
50AQI
2nd March 2025
69AQI
69AQI
3rd March 2025
42AQI
42AQI
4th March 2025
42AQI
42AQI
5th March 2025
26AQI
26AQI
6th March 2025
34AQI
34AQI
7th March 2025
30AQI
30AQI
8th March 2025
33AQI
33AQI
9th March 2025
33AQI
33AQI
10th March 2025
34AQI
34AQI
11th March 2025
39AQI
39AQI
12th March 2025
46AQI
46AQI
13th March 2025
44AQI
44AQI
14th March 2025
41AQI
41AQI
15th March 2025
34AQI
34AQI
16th March 2025
26AQI
26AQI
17th March 2025
23AQI
23AQI
18th March 2025
23AQI
23AQI
19th March 2025
19AQI
19AQI
20th March 2025
22AQI
22AQI
21st March 2025
42AQI
42AQI
22nd March 2025
48AQI
48AQI
23rd March 2025
58AQI
58AQI
24th March 2025
53AQI
53AQI
25th March 2025
66AQI
66AQI
26th March 2025
81AQI
81AQI
27th March 2025
68AQI
68AQI
28th March 2025
49AQI
49AQI
29th March 2025
37AQI
37AQI
30th March 2025
43AQI
43AQI
31st March 2025
32AQI
32AQI
1st April 2025
29AQI
29AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
20AQI
20AQI
4th April 2025
21AQI
21AQI
5th April 2025
22AQI
22AQI
6th April 2025
22AQI
22AQI
7th April 2025
30AQI
30AQI
8th April 2025
36AQI
36AQI
9th April 2025
24AQI
24AQI
10th April 2025
45AQI
45AQI
11th April 2025
40AQI
40AQI
12th April 2025
36AQI
36AQI
13th April 2025
27AQI
27AQI
14th April 2025
38AQI
38AQI
15th April 2025
28AQI
28AQI
16th April 2025
32AQI
32AQI
17th April 2025
44AQI
44AQI
18th April 2025
49AQI
49AQI
19th April 2025
63AQI
63AQI
20th April 2025
43AQI
43AQI
21st April 2025
44AQI
44AQI
22nd April 2025
40AQI
40AQI
23rd April 2025
28AQI
28AQI
24th April 2025
35AQI
35AQI
25th April 2025
36AQI
36AQI
26th April 2025
42AQI
42AQI
27th April 2025
45AQI
45AQI
28th April 2025
38AQI
38AQI
29th April 2025
38AQI
38AQI
30th April 2025
44AQI
44AQI
1st May 2025
39AQI
39AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
32AQI
32AQI
4th May 2025
37AQI
37AQI
5th May 2025
32AQI
32AQI
6th May 2025
27AQI
27AQI
7th May 2025
24AQI
24AQI
8th May 2025
26AQI
26AQI
9th May 2025
27AQI
27AQI
10th May 2025
20AQI
20AQI
11th May 2025
29AQI
29AQI
12th May 2025
33AQI
33AQI
13th May 2025
35AQI
35AQI
14th May 2025
30AQI
30AQI
15th May 2025
37AQI
37AQI
16th May 2025
39AQI
39AQI
17th May 2025
25AQI
25AQI
18th May 2025
41AQI
41AQI
19th May 2025
42AQI
42AQI
20th May 2025
57AQI
57AQI
21st May 2025
38AQI
38AQI
22nd May 2025
40AQI
40AQI
23rd May 2025
39AQI
39AQI
24th May 2025
37AQI
37AQI
25th May 2025
31AQI
31AQI
26th May 2025
26AQI
26AQI
27th May 2025
25AQI
25AQI
28th May 2025
23AQI
23AQI
29th May 2025
25AQI
25AQI
30th May 2025
24AQI
24AQI
31st May 2025
17AQI
17AQI
1st June 2025
20AQI
20AQI
2nd June 2025
26AQI
26AQI
3rd June 2025
30AQI
30AQI
4th June 2025
35AQI
35AQI
5th June 2025
40AQI
40AQI
6th June 2025
44AQI
44AQI
7th June 2025
46AQI
46AQI
8th June 2025
53AQI
53AQI
9th June 2025
38AQI
38AQI
10th June 2025
28AQI
28AQI
11th June 2025
30AQI
30AQI
12th June 2025
39AQI
39AQI
13th June 2025
33AQI
33AQI
14th June 2025
32AQI
32AQI
15th June 2025
36AQI
36AQI
16th June 2025
37AQI
37AQI
17th June 2025
47AQI
47AQI
18th June 2025
43AQI
43AQI
19th June 2025
38AQI
38AQI
20th June 2025
31AQI
31AQI
21st June 2025
28AQI
28AQI
22nd June 2025
23AQI
23AQI
23rd June 2025
24AQI
24AQI
24th June 2025
21AQI
21AQI
25th June 2025
20AQI
20AQI
26th June 2025
21AQI
21AQI
27th June 2025
36AQI
36AQI
28th June 2025
31AQI
31AQI
29th June 2025
34AQI
34AQI
30th June 2025
40AQI
40AQI
1st July 2025
37AQI
37AQI
2nd July 2025
44AQI
44AQI
3rd July 2025
40AQI
40AQI
4th July 2025
43AQI
43AQI
5th July 2025
53AQI
53AQI
6th July 2025
72AQI
72AQI
7th July 2025
79AQI
79AQI
8th July 2025
76AQI
76AQI
9th July 2025
70AQI
70AQI
10th July 2025
51AQI
51AQI
11th July 2025
46AQI
46AQI
12th July 2025
52AQI
52AQI
13th July 2025
44AQI
44AQI
14th July 2025
37AQI
37AQI
15th July 2025
35AQI
35AQI
16th July 2025
35AQI
35AQI
17th July 2025
37AQI
37AQI
18th July 2025
34AQI
34AQI
19th July 2025
32AQI
32AQI
20th July 2025
31AQI
31AQI
21st July 2025
31AQI
31AQI
22nd July 2025
31AQI
31AQI
23rd July 2025
30AQI
30AQI
24th July 2025
34AQI
34AQI
25th July 2025
27AQI
27AQI
26th July 2025
26AQI
26AQI
27th July 2025
25AQI
25AQI
28th July 2025
33AQI
33AQI
29th July 2025
27AQI
27AQI
30th July 2025
30AQI
30AQI
31st July 2025
30AQI
30AQI
1st August 2025
35AQI
35AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
44AQI
44AQI
4th August 2025
49AQI
49AQI
37AQI
34AQI
42AQI
35AQI
32AQI
33AQI
41AQI
43AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202536AQI
28
3
27
1
25
6
29
1
30
1
29
1
24
7
4
196
20
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
May32AQI
202437AQI
26
5
27
2
25
6
24
6
27
4
27
3
18
13
29
2
27
3
30
1
27
3
31
318
48
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
August28AQI
202338AQI
24
7
23
5
24
4
25
5
27
4
23
7
28
3
31
29
1
28
3
22
7
21
10
305
56
Highest AQI recorded in
December46AQI
Lowest AQI recorded in
August24AQI
202238AQI
26
4
20
1
27
4
21
9
27
4
25
5
18
3
1
28
28
3
24
6
27
4
272
43
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
August19AQI
202141AQI
24
7
23
5
26
2
1
28
2
21
10
27
3
24
7
24
7
27
3
30
1
24
6
23
8
301
61
1
Highest AQI recorded in
May46AQI
Lowest AQI recorded in
April37AQI
202038AQI
12
1
20
1
17
1
23
7
29
2
17
14
18
1
29
2
22
8
25
6
212
43
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
April31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
41AQILeast Polluted Year Recorded
2025(Avg.)
36AQIYawata's annual 2025 AQI (36) shows an average percentage change of -4.8% (improved AQI) compared to previous years: 2020 (38), 2021 (41), 2022 (38), 2023 (38), 2024 (37).
